now, maybe hot today but steve is coming back. steve is coming back. we expect to see this -- he will tell us the swing in weather we expect to see this week. >>> and we'll tell you -- and good morning. if you are driving to the bay bridge. you can see the slow traffic there already winding up around the macarthur maze. we'll tell you more about the backup. >>> 7:23. there could be a worldwide shortage of diapers after a japanese chemical plant was hit by an explosion. a firefighter and several workers were hurt. the plant is home to a particular home to make most of the world's diapers. pressures will increase for the company's other facilities to make -- companies to make up for the shortfall. >>> fans got quite a show when justin bieber threw up twice on stage. the kickoff concert was in arizona saturday night. even though he was sick on stage. he still finished the show. he then later tweeted a show of himself getting ready for the next tours. >>> caltrain, starting today, they are adding six more trains to accommodate all of the computers. other t